Tractor dump rake



June 5, 1945. c, GEMBERUNG 2,377,686

TRACTOR DUMP RAKE Filed May 14, 1943 4 Sheets-Sheet l IN V EN TOR.

June 5, 1945. c. H. GEMBERLING TRACTOR DUMP RAKE 4 Sheets-Sheet 2 Filed May 14, 1943 IN V EN TOR.

Qzmemn'HGemba-Zz'g June 5, 1945. c. H. GEMBERLING 2,377,636

TRACTOR DUMP RAKE Filed May 14, 1943 4 Sheets-Sheet 3 IN V EN TOR.

June 1945. c. H. GEMBERLING 2,377,635

TRACTOR DUMP RAKE Filed May 14, 1943 4 Sheets-Sheet 4 IN VEN TOR. 6222226102215. [zemerfi g B v 1 WITH) STATE on the tractor.

handed claims; i t

Patented June 5, 1945 rnacron DUMP Camemn H. Gelr berling, Smith; Bend, Indr, as-Q signor to The Oliver Corporation;acorporation of Delaware Application May 14, 1943,;Serial No.13mg; v 6 cl i (c1.5e

Q'Iheynresent invention relates aeneralh to dump ekeahu more particularlyvto a novel and mproved t peof tractor drawn dump'rake in Whic umeans are provided for controlling the commete operation and manipulation of the dum frame oftherake from theoperatorsfseat Another object of the invention is to provide a novel and improved construction of tractor drawn dumnrake which allot the controls ar operable from the operatorsseaton the tractor sach as the t ip for connectingi he power drive or power lift mechanism of the traction Wheels on the dump rake with the dump frame q iafitllate the same nd subsequ ntly re urn it H to its normal raking po itions v A further object or heinventiQn-is to anovel and i p oved tractor drawn dump rake in whi h means are not only provided .for controlling the actuationeof the dump frame atthe will of the operator, but also means within the ccntrol ofv the operator on the tractor to hold the dump framein elevated p sition for turnin attne ends of the field or tor thepurnose oi 1 transporting the rake proper.

provide thehinse arrangement between the main frame anddump-irameandass iatedvvpar st h Fig. 8' is a cross sectional elevationalview of the construc ion or the pa s shown inF g. 7 of the drawings with the dump ake in its lowered oroperativeposition h r t v in I v "Fig; 9 is a orosssectional iew s mi ar to that shown in F g-r 8; shpwinja the dump frame elevated loc ed inits raised orv inope a ive position:

and and shawing; he mann r in which the supportin Wheels; arewattached to he main frame.

iustahl-y conn cted to the plates ltisfi the usual draft zclevis 1.6 for, attach n the dump rake to the draw bar fwthestraotor. Secured adjacent he still further object of the inventionis to provi e nove and improved ype attractor drawn dump rake whichis sim le in con truction, efll-L cientinoperation and one in which the supports.

1 8; W els thereof are approximately one half the diameter of the conventional dump rake Whe ls. thereby pcrmittingthe employment. of the conventional type agricultural wimplement Wheels or similar wheels which willpermit the use or discarded automobile tires.

' The e and other objects areacodmplished providing a construction and an arrangement of he; Various parts inthemanner hereinafter dew cribed and particularlypointedfoutrin the a t Referringto the drawings:

Fig. lis artoI P an view of my improved tractor drawn and tractor controlled dump rake;

Fig. 2 is a side elevational view of the same; Fig. 3is an enlarged cross sectional view taken Fig a isfan enlarged cross sectional view taken Fig. dis a "rear elevational View of a portion of thetrip and power lift mechanism shown in Fig. 7 is a fragmentary top plan view showing lnnillhstratine ne form my invention may sum inpraeticalflhave shown the tractorv drawn damn ake as cempri ingamain vframe ccnstruction which includes a; lon itudinally extendin draw barter main framememher 15. To the forward end of said main frame member 11515 a tached spaced apart draw barplates l6; Ad,

the .fQrWard' end ofthe mainframe member s I 5 y tmeans of b lts ll are rearwardly diverging supplemental main flame members and braces 1%.: The rearward ends "of zthe supplemental framememhers 18, are bent as shownat 19 so as to extend parallel in a rearwardidirection; Se

cur d; adiaoen 'the rear endsof the: main frame 1 member ntend supplementalxmain frame meme bers I8 is a transverse angle-mainframe m b 20.1 The main iranriemember Missecuredto the transverse frame member zu-by a bracket 2| and holtsxn'. The rear ends ofthe diagonal 1 Q1 sup lemental frame members l8: are secured toptransverse angle member 20 by vertical angle brackets. 2| Secured to the lower end of each oi the anglehracketszl are vertical shanks 22 of each .of the horizontal axles 23. Each of the axles 23 are reinforced by axle brace bars 24 whichhave theirwuppe'r' ends secured as shown at 2'5 ate-each of the sunplemental frame members 118: and their lowert ends secured by meansof holtstzfi to axle brackets 26' The dump rakelis supported on two oppositely disposed wheels 21," which in turn, are joumaledqon the respective aides 233. The wheels in this instance are relatively small wheels, being substantially-[one-half of the diameter of the wheeljstheretofore used on horse drawn rakes. The wheels in this instance are provided with a hub .constructiom as shown at 2B. Formed integrally with these hubs 28am discs 'or-pinions 29.: :Ihesa discs or pinions are Plotided with five equally spaced apart rollers,

El a 1c is al raementarv end elevational view teeth 33. This dump frame is pivotally attached I to the main frame member l and supplemental main frame members l6 by hinge pins 34 and hinge brackets 35 as clearly shown in Figs. 1 and 2 of the drawings. The brackets 35 are secured to frame member 32 at spaced intervals. The dump rake is provided with the usual rearwardly extending and arallel cleaner bars 36 which have their forward ends secured to the main frame angle member 20. The intermediate portions of these bars are braced or secured to ether by a transverse brace bar 31.

'- The mechanism'for furnishing the power to actuate or lift the dump frame and the different controls thereforwill next be described. This power lift mechanism, of which there are two in number, one located adjacent each ofthe wheels, includes stub shafts 68 journaled in bearing brackets 39, which in turn, are bolted to theoppositeends of the transverse frame member 26 and supplemental main frame members l6 by means of bolts 46. Rigidly secured to the outer ends of each ofthe stub shafts 38 by means of keys and clamping bolts 4| are rack supports, generally indicated by the reference character 42. These rack support members 42 have hub portions as shownat 43 which embraces and rigidly secures each support to its respective stub shaft 38. Formed integrally with the hub portion 43 of each support '42 .are two laterally spaced apart walls or arms as shown at 44.- Pivoted to the free ends of and between the arms 44 of each of the supports 42,'by'means of a pin 45, are racks 46. The racks 46'exte'nd'forwardly and are provided on their I lower sides with spaced apart teeth 41, 48 and49 which are adapted to successively move into the path of and be engaged by the rollers 36 of each of-jthe respective pinions 29 during the operation of "lifting thedump frame from its lowermost position to its uppermost position in the manner hereinafter described. J

i Located adjacent the rear ends of each of the racks are cam portions 50 which are adapted to engage one ofthetrollers 30 of the respective cooperating pinions 29to disengage the racks from the pinions at the conclusion of the dumping operation. I Pivoted to anintermediate portion of eachof the racks 46 on a pin 5| is a hold-u bar 52, The upper end of each of the bars 52 extends through and is guided between the vertical arms 44 of each of the respective rack supports 42 by means of a roller 53. An intermediate portion of each of the hold-up bars 521 is .provided with a cut out portion or notch 54 in which is adapted to be; seated a roller 55 journaledyon a pin 56 mounted in the lower endsof each .of the roller brackets or levers 51., The pin 58 is mounted in two'spaced apart 'aperturedears 59 formed integrally withthe opposite arms 44 of each of the rack supports 42. It will be obvious from the above description that the rollers 55 of each of the roller brackets 51 are adapted to engage the respective notches 54 of each of the hold upbars Him the purpose of normally holding the racks 46 disengaged from the respective plnions 29. Formed brackets 51 is an upwardly extending arm 60. Formed integrally with and extending laterally with respect to the upper ends of each of the arms 66 of the roller brackets 51 are laterally projecting latch lugs 6!. Each of these lugs are located in the path of a hook for controlling the releasejof the respective racks 46 in the manner hereinafter more fully described. The roller brackets 57 are actuated in a clockwise direction as viewed in Fig. 4 of the drawings, by springs 62. The upper end of each of the springs 62 is connected as shown at 63 to an apertured ear.

formed on the upper arm 66 of the roller bracket 51. The lower end of the spring 62 is connected, as shown at 64, to an apertured ear formed on the free end of one of the arms 44 of the rack support 42.

The traction or power lift action derived from the supporting wheels 2'! is transmitted through the pinions 29, racks 46, rack supports 42, to the dump frame of the rake by means of connections orrods 65 which have their lower ends bent at right angles to pivotally engage apertures 65" formed in the rack supports 42. The upper ends of the connecting rods 65 slidably extend through apertures 66-formed in pipes or swivel sleeves 51. Each of these pipes 61 is oscillatably mounted in two apertured and spaced apart bearing ears 68 formed on the forward ends of each of the crank arms 69. Crank'arms' 69 are located adjacent the opposite ends'of and secured to the dump frame angle member 32 by means of bolts 10. The upper ends of each of the rods'65 are provided with a plurality of spaced apart apertures H which are adapted to adjustably receive a cotter pin 12, A washer i3 is positioned between each of the cotter pins I2 and the respective transverse pipes 61. i i 1 7 From the above description it will be observed that the cotter pins 12 may be adjusted in the various apertures in the connecting rods 65 so that when the "operator-desires to raise the rake teeth to different elevations'during the dumping operatiomsuch, for example, when a heavy crop of hay is being raked, a shortening of the connectionsgbetween the rack supports 42 and the crank brackets 69 will cause the rake to be actuated to 'a higher elevation to take care of the heavier crop. i

The lowermost position of the dump frame and the forward position of the lower end of the rake teeth 33 is controlled by an adjustable stop which includes a laterally projecting lug 14 formed integrally with one of the. arms 44 of each of the racksupports 42; This lug 14 is adapted to move into the path of and engage the lower end of an adjustable stop or bar 15. The adjustable bar 75 is provided with a plurality of spaced apertures 16 so that a bolt 11 may be inserted in any one of these apertures for adjustably securing the stop 15 to the main frame angle member 26. The position of these stops 15, together with the adjustment of the rods 65 control the downwardposition of the dump frame with respect to the main frame of the dump rake. In this connection it will also be observed that the weight 10f the rake teeth and dump frame, as a whole, exerts anupward pull on the connecting rods 65 and is so arranged as to normally and automaticallyreturfrthe dump frame to raking or down position at the completion of the cycle of the dumping opera- 5 integrally with each of the roller in the supplemental frame members IBQ The control from I the operator's seat on the tractor for connectingthe supporting wheels of dump the dump frame will nextbe described. This mechanism includes trip ropeor cord 18 the dump rake with the power lift to actuate or g which extends within easy reach ofthe operators seat on the tractor and is supported in I tured eye 84, whichin turn, is secured to the upper end of one or thecranks 80 by one of the bo1tsx82. The lower end of the spring 83 is connected to a latch for locking thedump frame in raised or inoperative position, the construction or operation of which will be hereinafter described. The inner ends of each of the trip rods 8| are journaled in bearing brackets 85, which in turn, are secured by means of bolts 80 to the transverse main frame member 20. The outer ends of the respective trip rods 8| are journaled in bores or apertures 81 formed The outer ends of each of these trip levers 8| are provided with relatively short crank portions 89 which extend parallel to the inner cranks 80 thereof and are pivotally connected as shown at 09 to trip hooks 90. These trip hooks 90 have hook portions asshown at 9| which move into the path of and are adapted toengagethe laterally projecting lugs 6| formed on the upper ends of each of the roller brackets 51. The hook members 90 are limited "in their downward movement by upwardly extending lugs 92 formed integrally with the brackets 39. v I

The mechanism for holding the dumpframe in elevated or inoperative position and its control therefor from the operatorsseat on the tractor will next be described. This mechanism includes a vertical support or bar which is secured adjacent the forward end and to one side of one of the supplemental frame members |8Fbythe bolts I1.

Secured to the upper ends of the bar 93 by means of a bolt 94 isa control rod bracket 95. This slot 98 so as to form in effect an-exaggerated key hole slot. Seated in the slot: 98 of the bracket 95is a control rod 99, theforwardendjof which; is provided with an eye I located withineajsy ansle member in limitine'ithe clockwisemovm ment of the latch I03 as viewed in Fissc8 and 9 I of the drawin s. The forward movement of the hang-up hook I 03 is limited by another stop por:

tion I06 formed integrally therewith and adapted I to. engage the upper surface of the mainframe member 20.I The latch is normally actuated rearwardly by the extension spring 83 having its lower end connected as shown at I01 to an apertured ear formed on thehans-xiphook I03. The upper reach of the operator on/the tractor. Positioned adjacent the ring I00 is a conically shaped lug or stop |0| whose largest diameter issufliciently small to pass through the ring 99, butwhen with- I drawn forwardly and lowered intothe slotted drawings.

opening 98 of the bracket 95, will lock the control 1 rod 99 in the position shown in Fig. 2 of the The rearward end of the control rod is pivoted, as shown at I02, to a hang-up hook or I latch generally indicated by the reference character I03. The hang-up hook I03 is pivotally at- Formed inl l I a pin 'I I0 carried by a bracket I I I.

or freeend of the hook I03 hasa hook portion, as shown at I08, which is located in the path of and adaptedto engage a roller I09 journaled on The bracket III issecured to the dump frame member 32 by means of bolts I I2. I

summarizing the advantages is being drawn by a tractor and the operative parts; are in thepositionshown in Figs. 1 and I2 of the drawings. IWhen sufficient-hay hasheen I accumulated by the rake and the operator de- I sires to dump the hay thus accumulated, therope or cord 18 ispulled forwardly from the operator's I the rollers 55 from their respective notches 54 in each of the hang upbars 52; As thehang up 0 bars 52 are released, the racks 46 drop down Wardly so that thelugs or teeth 4:! and 48 and 49 successively engage the rollers on each of the respective pinions 29, causing the rack support levers 42 to be'actuated downwardly abouttheir respective stub shafts-"s8; The movement of the support levers 42 are transmitted to' the connecting rods 65 and crankbrackets 69, to, in turn, ac-

tuate the dump frame about their hinged pivots 34 on the mainframe. This dumping movement continues until such time or until the cams 50 formed on the rear end of each of the racks 46 engages one of the rollers30of each of the pinions 29 tothereby release theracks from the pinions and automatically returnthe dumpframe to its raking position. It will be observed that the po- 1 sition of the teeth may be changed, that is, moved I forwardly or backwardly with respect to the main frame by adjusting I the stop I5 with respect to w the main frame member 20.. When such adjustment is made, it may be also made in conaperturesll in the connecting rods 65.

ShouldIthe operator desire to lock the dump frame in its elevated or'inoperative position, this may be accomplished from the operatorfs seat on the tractor-during the dumping operation or at any time that the operator desires, so that the dump frame may be held in inoperative position while the rake is being turned-at the end of the field or being transported to or from the field.

This is accomplished by releasing the control rod I 99, or more particularly the lug I0| attached thereon from the slot 98 in the control bracket by permitting the lug IN to be moved rearwardly through the opening 91 and the ring 96, thereby releasing the hold-up hook I03 so that the same will be in position to engage and latch the roller I09 as shown in Fig. 9 or the drawings,

I05, which is adapted to I en age-the main frame and novel fea- I tures of operation, :let us assume that "the. rake When in this position, the dump frame is locked inits elevated or inoperative position. Obviously, when theoperator desires to release or lower the dump frame from its inoperative position, the control rodmay be pulled forwardly i and the latch or hang up hook 103 rendered inoperative by locking-the lug llll of the control rod- 99 in the position shown in Figs. 2 and 3 of the drawings. i l

.From the above description it will be seen that I have provided not only a very simple and efficient tractor'drawn. dump rake, but one in which all the controls maybe manipulated from the op-v erators seat on the tractor, thereby eliminating the necessity of mounting and dismounting from the tractor to accomplish these functions. It will also be obvious that the rake is provided with a .variety of adjustments which take care oflvaryingconditions of the crop. This novel construction'of dump rake also permits the use of standard size implement wheels so that discardedautomobile tires may be used for the conventional tire wheel.

While in theabove specification I have described one form for which my invention may i assume in practice, it will, of course, be understood that the same is capable of modification and that modification may be made without departing from thelspirit and scope of theinvention as expressed in the following claims:

What I'claim as my invention and desire to secure by Letters Patent is: v

l. A tractor drawn dump rake comprising a main frame,. wheels for supporting said main frame, a dump frame hinged to said main frame, pinions carried by said wheels, rack supports pivoted to said main frame, racks pivoted to said supports and adapted to engage said pinions, hold-up bars pivoted to said racks and slidably connected with saidlsupport, roller brackets pivoted to said support and adapted to engage said hold-up bars for holding said racks out of engagement with said pinions, and means for actuating said roller brackets to lower said racks into engagement-with said pinions.

2. A tractor drawn dump rake comprising a main frame, wheels for supporting said main 1 frame, a dump frame hinged to said main frame,

pinions carried by said wheels, rack supports pivoted to said main frame, racks pivoted to said supports and adapted to engage said pinions, hold-up bars pivoted'to said racks and slidably connected with said support, roller brackets pivoted to said support'and adapted to engage said hold-up bars for holding said racks out of engagement with said pinions, and trip latches controllable from the operators seat on the tractor and engageable with said roller brackets for releasing said racks into engagement with said pinions. v .7

, 3. A tractor-drawn dump rake comprising a mainframe, wheels for supporting said main framea dump frame hinged to said main frame, pinions carried by said wheels, rack supports pivoted to said main frame, racks pivoted to said supports and adapted to engage said pinions, hold-up bars pivoted to said racks and slidably connected with said support, roller brackets pivotedto said support and adapted to engage said hold-'up barsfor holding said racks out of engagement with saidpinions, trip latches control.

lable from the operator's seaton the tractor and engageable with said rollerbrackets for releasing said racks intoengagement with said pinion for raising said dump frame, and means carried by said main frame and operable from the operators seat on the tractor for locking said dump frame in raised position. l

4. A tractor drawn'dump rake comprising a main frame, wheels for supporting said main frame, a dump'frame hinged to'said main frame, pinionscarried by said wheels, rack supports pivotedto said main frame, racks pivoted to said supports and adapted to engage said pinions, hold-uploars pivoted to said racks and slidably connected with said support, roller brackets pivoted to said support and adapted to engage said hold-up bars for holding said racks out of engagement with said pinions, trip latches controllable from the operators seat on the tractor and engageable with said roller brackets for releasing said racks into engagement with said pinion for raising said dumpframe, and a latch carried by said main frame and controllable from the operators seat on the tractor for locking said dum frame in elevated position. I

5. A tractor drawn dump rake comprising a main frame, wheels for supporting said main frame, a dump frame hinged to said main frame, pinions carried by said wheels, rack supports pivoted to said main frame,,racks pivoted to said supportsand adapted ;to.engage said pinions, hold-up bars pivoted tosaid racks and-slidably connected with said support, roller. brackets pivoted to said support and adapted to engage said hold-up bars for holding said racks out of engagement with said pinions, trip latches controllable from the QDerators seat on the tractor and engageable with said roller brackets for releasing said racks into engagement with said pinions,

and adjustable stop bars carried by said main frame and engageable with said supports for varying the limit of, upward movement of said dump frame with respect to said main frame.

6. A tractor drawn dump rake comprising a main frame, wheels for supporting said mainframe, a dumpframe hinged to said mainframe, pinions carried bysaid wheels, rack supports pivoted to said main frame, racks pivoted to said supports and adapted to engage said pinions, hold-up bars pivoted to said racks and slidably connected with said support, roller brackets pivoted to said support and adapted .to engage said hold-up bars for holding said racks out of engagement with saidpinions, trip latches controllable from the operators seat on the tractor and engageable withsaid roller brackets for releasing saidracks into engagement with said pinion for raising said dump frame, a latch carried by said main frame and controllable from the operators seat on the tractor for-locking said dump frame in elevated position, and adjustable stop bars carried by said main frame and engageable with said supports for varying the limit of upward movement of said dump frame with respect to said main frame.

CAMERON H. GEMBERLlfNG. 

